Condensing apparatus for carding machines



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.|. H. KovAR ET Al.

CONDENSING APPARATUS FOR CARDING MACHINES Filed June 16 1920 2 Sheets-Sheet 2 tion.

f hing apron unit Patented Sept. 25, 1923.

JOHN H. KOVAR, 0F lWORCli..STEJ5t, JOSEPH intakes i i a F. sentirmi; Yor HOLDEN, MASSACHUSETTS,

AND ALEXANDER CAVEDON, OF VIOONSOCKET, `RHO`DE` SLAND, 'ASSIGNORS T0 CASHIKO MACHINE COMPANY, OF YORCESTER, MASSACHUSETTS; A CQRPORAUJICl'l'A or' MASSACHUSETTS.

CONDNSING APARATUS FOR'CARDING MACHINES;

A,Application inea Janev 1e, 1920. seriaiimssaioa T 0 42.7, vii/710m. it may concern.' y

Be it 'known that We,'JoHN H. Koma, a citizen oi the Republic of Czechoslovakia,

residing at Voicestei', in the county' of livorcester and Commonwealth of Massachusetts, Josemi F. lMerriman, citizen yot Vthe United States, lresiding at. Holden, in the county of Vforcester and Commonwealth ofA lilassachusettsfand ALEXANDER C fivnnon, a citizen of thegUnitedV States, residing at Toonsocket, in' thev countyot' `Providence. and State of Rliode'lsland, have invented a new and useful Improvement in a Condensing Apparatus for Carding -Machines, oiy which theV following, together with the ac# fragile nature of the material handled thereby and as arresult condensing apparatus, as heretofore constructed, has been highly complicated and diilicult to maintain inl proper operating condition. of our invention is to provide a tape condensing machine that is simple in construction and comprises a minimum number of parts. Further objects of our invention are to increase the accessibility of the movingparts ofthe machine, so that their .operation mayV bereadily observed, and to provide for Athe ready removal oi' the various partsV for the purposeof inspectionand repair. These and ether advantageous features of our invention will hereinaftermore Jfully appear, reference being had tothe accompanyingdrawings, inwhich YAYFigure VVl is a perspective view'o a tape condensing Figure 2 a view partly in section; and partlv in side elevation showin` the o o: site. end ofthe machine shown inFimy l.

gure 3 is a The principal object'v machine embodying Your' inven-VV 5 ing. a

larlparts in the diii'erent figures.

Referring to Pigs. 1 and v2, the'niacliineVV general]yfcomprisesv end trames 1 and 2 b'etween which are inountedt-he operating parts of the'machine.

'Y Similar reference characters referto simi- A pair of dividing rollsl f 3, 3,` are mounted at the front oi' the machineVV in Vsuitable bearings 4, 4, supported in-V Ynotches 5,5, provided in the frame members v1 and 2. AThe frame members 1 randl2 are respectively provided with projecting portions 6,- 6, for supporting guide rolls?, 7,. parallelto the axis of rotation of the divid--v ing rolls S3, 3. The guide rolls Y are rotatably. mounted in VeXcentric bushings 8', S-,Vtliat are` carriedin openings 9, 49, Vprovided in the' projecting portions 6, 6.

L plurality ot tapes 10 are carried2 upon the dividing rolls 3, 3, and 'are held in en? gagement therewith by theV guide Tous?, p

alternate tapes being 'carried-on "the saine` roll 3. The tapes 10 extend from the guide rolls 7 almost around theperiphery of each" dividing roll 3 to a pair of rolls ll that are rotatably mounted in eXcentricjbushings 12j disposed in notches 1?# in the end frames 1 and 2. The tapesflO' diverge at the rolls 11,

oneset of tapes passing to each' of thegder; livery rolls 14 and 15. The rolls 14` and 15V are arranged in a vertical line and. are supported bybushings'16 and 17 that areseated innotchles 18 provided intheY frames 1' and The respective sets ot tapes 10 come together.

,again'at the A'rolls 19 lit'rom` whence they pass downwardly over rolls'20 tothe gui-de rollsk trames and the vrolls l20are rotatablyl supported in .bushings 22rcarried in notches 23` inthe endfraine.. n y.

TheA web from the do'eronfthecarding machine is delivered ,to the; tapes .10 Ybetween the Vdividing Lrolls 3, Vas' indicated the ar;

Y row, which divide the webfequally, one halfpassing toeaeh oit' thefrolllsll. ,'lhe'gt'veb V t. The rolls`19 are, rotatably mountedY `int bushings 21 ycarried injopenings in the end iooA .is then further divided by the divergence ofY the tapes .10,(at therolls llfeachindividual l tapefthen 'carrying 'a separate tofbe Vafter loosening the bolts aprons 25.

rolls i4 deliver sets of tapes to and the rolls l5 formed into roving. The the bands carriedby their pairs of rubbing aprons 24 deliver the bands carried by the other sets ofV Yshown one complete rubbing apron unit, in

which the'aprons 25 are supported at their ends by rolls 28 and 29. rEhe rolls 28 and 29 0f the upper apron 25 are rotatably supported in end brackets 30 andr3l, which are secured to bosses 26?L at the topothe opening 26 in the endrframes by bolts 32. The rolls 28 and 29 of the lovver apron25 Vare rotatably supported in end bracket-S33 and 34 that are respectively vsecured to the end brackets 30 and 3l by means of bolts passing through projecting portions 36 of the end brackets 33 and 34 that are received in slots 37 provided in the end brackets 3G and 3l. The holes in the portions 36 for the bolts are slightly larger than the bolts 35, so that the end brackets 33 and 34 are capable of vertical adjustment with respect to the end brackets 30 vand 3l. studs 38, carried by the upper brackets 30 and 31, are provided with heads 38a engaging the lower brackets 33 and 34, so that the distance between the aprons may be accurately adjusted by turning the studs 38 l Y The apron rolls 28 are supported at their ends in bushings 39 that are universally mounted in slots 40 provided Yin the end brackets 30, 3l, 33 and 34, Veach bushing 39 being provided With a. rounded peripheralV portion`4l that fits in curved grooves 40a provided in the slot 40. Each bushing 39 is further provided With a stud 42, and nuts 43 in threaded engagementtherewith, by means of which Vthe rolls 28 may beshifted laterally in the vbrackets for regulatingr the tension of the The bushings 39'are also'capa Y able of universal movement, for` a purpose to be hereinafter described.

The shafts 44 of therolls 28 and 29 ez;- tend beyond the end brackets 30 and 33 and are secured vto cross-head bars 45 by means of nuts 46 coacting with threaded end portions of the shafts 44. One end of each bar 45 is provided with a slot 47 in substantial alinement with the slots 40 of the end brackets 30 and 33, thus permitting lateral Inovement of the roll 28 with respect to the crosshead bar. A pin 48, pivotally mounted between lugs 49 0n the cross-head bar 45, is secured to a boss 5 0 provided on one of tvvo Adjusting eccentric yoke members 51 by means of a stud 52. The eccentric yoke members 51 inclose an eccentric disk 53 and are secured together thereon by means of bolts 54. The eccentric disk 53 isgcarried on a vertical shaft 55 which, as best shovvn in Fig. 2, eX- tends the height of theend frame 2, and is provided with an eccentric disk 53 for each one of the cross-head bars 45. The shaft 55 is'rotatably mounted in suitable bearings 56 and is provided at its lower end With a head is embraced by a fork Y6l carried by the cross-head bar 45, so that the middle apron roll 58 is adapted to move With the cross-head when the latter is moved back and forth by .the eccentric. disk 53.V A middle roll 62 carried between the end Vbrackets 33 and 34 is supported at its ends in eccentric bushings 63, and studs 64 are provided for holdingthe eccentric bushings 63v in position. ln this Way theV distance betweenV the middle rolls 58 and 62 may be adjusted Without disturbing the adjustment between the endbrackets 30 andr33 and 3l and 34, respectively. y f Y Referring particularly'to Figs'. 3, 4, and 5, sprocketwvheels 65 and 66 are rotatably mounted on extensions 39a ofthe bushings 39 that are carried by the end bracket 3l. The sprocket Wheel 66 is provided with hub portion 67 upon which are formed a pair Y of dogs 68. The roll V28 carried between the upper end brackets 30 and 3l is provided with an extended shaft portionl 69, upon which is mounted a spur gear 70. The spur gear 70 is provided with a hub portion 71 upon which are formed dogs 72 that areV adapted to slide bet-Ween the dogs 68 of the sprocket wheel 66, as the roll 28 is moved longitudinally by the eccentric disk 53, thus p maintainingr a continuous driving connection. between the spur gear 70 and the sprocket Wheel 66. The roll 28 carried between the lowerv end brackets 33 and 34 is All parts described thus farWit-hY relation to the upper set of aprons 25 form one com-- plete apron unit. This unit can be removed llt) Vmesh with the spur gear 75.

from' the machine, as a whole, after dis-V connectingv the pin .48, from the eccentric yoke member 51 and removing the bolts 32 which secure the end brackets 30v and 31 `to the end frames` 1 and 2 respectively.

The upper apron roll 28 of the neXtApair of `aprons is provided with a shaft eXtenset of aprons is provided with a shaft ex tension which carries a'spur gear- 79 in Y A sprocket wheel 8O is rotatably mounted upon the bushing of the lower apron roll 29. The several sprocket wheels 65, 66,76 and: 80 are connectedby a continuous chain 81 which Valso passes around a driving sprocket wheel 82. As best shown in Fig. l, the sprocket wheel 482 is mounted upon a shaft 83 that is driven from a power shaft84 bymeans of gearing 85. .A pulley 86 is mounted upon the'shaft 84 and is adapted to be driven from a suitablersource of power, not shown.

The two pairs of apronsl locatedrin the lower-'frame opening 27 are adapted to be driven in the same manner by means of sprocket wheels 87, 88, 89, and 90, and a continuous chain 91. The driving sprocket 905is mounted on a shaft 92 that is also driven from the driving shaft 84 by suitabley reduction gearing. Vinding rolls 93 are mounted at the rear of the machine and are adapted to receive the condensed roving from the several pairs of aprons 24 and 25. The winding rolls 93 are adapted to be driven in unison by a belt 94 passing over a driving pulley 95 which is also connected to the driving shaft 84 by suitable. gea-ring.

Having thus described the various parts carried by the rolls 14 and 15 deliver the separate ribbons to the rubbing aprons'24 and 25. The aprons 25 aregiven a recipros eating movement by the eccentrics and as the eccentrics of each set of aprons are offset,

with 'respect to each other, the aprons of each unit exert a rubbing action upon the web. At the same time the aprons are moved by the rolls 28 and as the separateVV ribbons are conveyed thereby' they are condensed into roving which is then wound upon the rolls 93. y i

The particular advantageous .features of our machine, ascompared with machines' heretoforeconstructed, will now be sepa.- ratelyl considered and pointed out. In' the first place,- the shafts of the delivery rollsl Y 14 and 15 are rotatably supported in bush-` ings that are seated'in notches or'openings Vprovided in the end frames 1 and V2. In previous machines, the deliveryrollshafts have beensupported in bearings carried by brackets separately.` secured to the end frames,- tlius necessitating a very careful setting up and adjustmen'tof the bearings on the frame, in order to maintain the delivery rollsin proper alinement with respect tothe aprons. In -our machine, the bearings are accuratelypositionedv on the end vframes so that there is little or no possibility of the bearings shifting with .re

spect tothe aprons after the rollsnare once mountedthereon.` l

/The embodiment of the'several pairs of aprons in separate units which are readily Y removable from the machine is believedtoVV of aprons., In o ur machine, it is only necessary to remove the studs 52 in order to dis-' connect the cross-heads'of a pair ofapron rollslfrom the eccentric yokesV and to remove the bolts 32 holding 'the end` frames 'in order to take out a complete apron unit with all ofv the' vroll mechanism attached thereto. Furthermore, the aprons of each unit are capable of'adjustment in several ways. The tension of the aprons can be regulated by moving the end rolls 28 within the end brackets 30 and 31 andthe distance between the aprons can Vbe radjusted by moving thev upper and lower end brackets with respect to each other, through the adjustingstuds 38. The eccentric bushings 63 which support the middle apron rolls alsopermit of still closer adjustment of the distance between the middle portions of the aprons independently of the end brackets. The connection of the middle apron rolls to the cross-heads also reduces the amount of wear on the aprons which would otherwise occur if the middle apron rolls were stationary, as

in previous machines. The universal mounting of the adjustable bearingsr39 of the apron rolls 28 insures smooth: running of the aprons for any tendency o-f the aprons to-'bind will be compensated for by pivotal movement of the bushings in lthe'slot's 40.

Lastly, the arrangement fondrivil'i'gA the apronrolls without the' use of direct reduc-"f tion' gearing 'between' the roll shafts greatly simplifies the machine. It is highly vdesir?,v

able to'be' able to drive therubbing aprons" from the rolls farthest removed from the tapes, so that the I`ru'bbing surfaces will be Y drawn taut as the aprons moveY from the`4 the number ot' moving parts but also greatly increasesv the accessibility of the apron roll units. It is only necessary to disconnect the driving chain from the sprockets in orderY to remove an apion roll unit -from the end of the machine. This would not be possible ot attainment with the use of reduction gearing between the driving shaft and the apronV roll shafts. i

lVhile we have shown our invention embodied in a condensing machine having a particular arrangement of parts, it is not so limited, but the several novel features thereof may as well be embodied in other machines of the same general type without departing from the spirit and scope of the invention. IVe desire therefore that only such limitations be imposed thereon as come within the scope of the appended claims.

IVe claim,

l. In a tape condensing machine, a pair ot' spaced supporting members, a rubbing apron carried at its ends by rolls slidable longitudinally in said supporting members, an adjusting roll extending through said apron intermediate its ends, and cylindricalY bushings carried by said supporting members and each provided with an opening eccentric with respect to its axis for receiving an end ot said adjusting roll, whereby turning of said bushings is adapted to shift the axis ot said adjusting roll. i

2. In a tape condensing machine, aA pair oi end brackets, a rubbing apron, rolls slidable longitudinally in said brackets for supporting said apron aty its ends, an intermediate apron adjusting roll, and bushings carried by said brackets for rotatably and slidably supporting said intermediate roll, said bushings being eccentric about the axis ot rotation of said intermediate roll, whereby said apron may be adjusted.

3. In a tape condensing machine. a pair ot rolls, a rubbing apron carried at its ends by said rolls, andy a sleeve bearing capable ot' universal movement about a vertical axis for rotatably and slidably supporting one of said apron rolls.

4. In a tape condensing machine, a pair of brackets, a rubbingapro'n, a pair of rolls extending between said brackets for supporting said apron at'its ends,'and a sleeve bearing capable of universal movement about a vertical axisin a slot provided in one of said brackets for rotatably and slid ably supporting one of said apron rolls.:v

5. In a tape condensingV machine, end brackets, apron rolls, a-pair of rubbing aprons each carried by a set of rolls rotatably mounted in horizontally alined end brackets, lmeans torsecuring vertically alined brackets together, in pairs, with said aprons a predetermined distance apart, and further means for vertically adjusting the brackets to regulate the dista-nce between saidY aprons. Y

6. .In a tape condensing machine, end brackets, apron rolls, a pair Aof rubbing aprons each carried by a set of rolls rotatably mounted in horizontally alined end brackets,l means for securing vertically alined brackets together, in pairs, with said aprons a predetermined distance apart, and means coacting with each vpair of said brackets for adjusting the distance between said aprons. Y'

7. In. a tape condensing machine, end brackets, apron rolls, a pair of Vrubbing aprons each carried by a set of rolls ro-.

tatably mounted in horizontally alined end brackets, means vfor securing vertically alined brackets together, in pairs, with said aprons a predetermined distance apart, and studs respectively having an operating portion between each pair ot' brackets for adjusting the distance between said aprons.

8. In a Vtape condensing machine, end brackets, apron rolls, a pair ot rubbing aprons each carried by a set of rolls rotatably mounted in horizontally alined end brackets. means for securing vertically alined brackets together, in pairs, with said aprons a predetermined distance apart. and means tor shitting the axis ot' rotation ot one ot Said rolls for adjusting the distance between said aprons.

9. In a tape condensing machine. end brackets, apron rolls, a pair ot rubbing aprons each carried Aby a set of rolls rotatably mounted in horizontally alined end brackets, the said brackets and the said rolls being vertically adjustable with respect to each other to vary the distance between the aprons.

l0. In a tape condensing machine, end

brackets. apron rolls, a pair ot rubbing aprons each carried by a set of rolls rotatail bly mounted in horizontally alined end brackets, the said brackets being vertically adjustable with respect to each other to vary the distance between the rolls, and the axis of rotation of one ot said rolls being shiftable to vary the distance between the aprons.

1l. In a tape condensing machine, end brackets, apron rolls, a pair of rubbing aprons each carried by a set of rolls rotatably mounted iny horizontally alined end brackets,

the brackets and rolls for one apron beingk apron rolls slidably mounted and connectedy to said cross member, a rotatable shaft pro- Y vided with an eccentric disk, a yoke embracingsaid disk and provided with a boss hav- Y ing an opening therein, a pin pivotally mounted on said cross member and extending into said opening and means coacting with said boss for removably securing said pin in said opening.

13. In a tape condensing machine, a rotatable shaft, a pair of rubbing aprons, a stationary frame member, a plurality of apron rolls rotatably and slidably mounted in bearings carried by said bracket, means for longitudinally moving said rolls, a sprocket Wheel loosely mounted on one of said rolls, a chain connecting said sprocket Wheel to said rotatable shaft, and a slidable driving connection between said sprocket Wheel and said rolls, whereby said rolls are driven in unison from said Vshaft simultaneously with their longitudinal movement in said bearings. l Y

14. In a tape condensing machine, rotatably and slidably mounted rolls, a rubbing apron carried on said rolls, one of Which is provided with a shaft having a gear mounted at its end, means for shifting said shaft longitudinally, and a sprocket Wheel loosely mounted on said shaft and continuously con- Y 'ingsaidgearsVv u Y Y p 16, In a tape condensing machine, rotatasie nected to said gear dogs in sliding engagement. Y

1 5. In a tapecondensing machine, rotatably and slidably mounted rolls, a pair of rub- 1 bing aprons carried on said rolls, one roll-of each apron being provided With anextended shaft, intermes'hing gears'v carried by saidshafts,and a sprocket Wheel loosely mounted on one of said shafts for continuously drivbly and slidably mounted rolls, a pair of rubbing aprons carried on said rolls, one roll of each apron being provided with an extended shaft, and the said shafts being adapted for relative longitudinal movement, intermesh- Y ing gears having teeth of different length carried at the ends of said shafts, anda sprocket Wheel loosely mounted on one of said shafts and continuously' connected to one of said gears by sliding dogs.

17. lnV a tape condensing machine, a ro`Y` tating shaft, a rubbingl apron, a pair of ro` said apron, means for longitudinally moving said rolls, a sprocket Wheel free to turn on the extended shaft of one of said rolls, a chain connecting said sprocket Wheel to said rotating shaft, and a slidable driving contat-ably and slidably mounted rolls carrying nection between said sprocket Wheel and'one of said rolls, whereby said apron is adapted' to be driven bythe rotation ofrsaid rolls simultaneously with the longitudinal movement thereof. Y Y

JOHN H. KQVAR. Y JOSEPH F; Y ALEXANDER CAVEDON. 

